Note 2 - Investments (Details Textual) - USD ($)			3 Months Ended
	Apr. 04, 2025	Mar. 01, 2024	Mar. 31, 2025	Mar. 31, 2025	Mar. 31, 2024	Jan. 14, 2025	Dec. 31, 2024
Income (Loss) from Equity Method Investments				$ 41,438	$ (575,904)
Investments			$ 39,594,103	$ 39,594,103			$ 38,885,998
Investment Owned, Balance, Shares (in shares)			11,041,667	11,041,667
Green Li-ion Pte, Ltd. [Member]
Investment Owned, Balance, Shares (in shares)			35,662	35,662
Subsidiary, Ownership Percentage, Noncontrolling Owner			13.34%	13.34%			13.34%
Sierra Springs Opportunity Fund, Inc. (SSOF) [Member]
Payments to Acquire Investments				$ 300,000
Investment Owned, Balance, Shares (in shares)			11,041,667	11,041,667			10,875,000
Subsidiary, Ownership Percentage, Noncontrolling Owner			17.46%	17.46%			17.27%
Investment, Shares for Conversion of Advances (in shares)				166,667
Invesment Purchased, Price Per Share (in dollars per share)			$ 1.8	$ 1.8
Investment, Maximum Exposure to Loss			$ 19,875,000	$ 19,875,000
Research and Development Company [Member]
Income (Loss) from Equity Method Investments		$ 1,290,614		41,438
Equity Method Investment, Implied Interest			1,162,957	1,162,957
Payments to Acquire Equity Method Investments				$ 0	$ 120,000
Hexas SAFE [Member]
Payments to Acquire Investments			$ 366,667
Hexas SAFE [Member] | Subsequent Event [Member]
Payments to Acquire Investments	$ 133,333
Investments	$ 500,000
Hexas SAFE [Member] | Licensing Agreements [Member]
License Agreement, Fee Amount						$ 500,000